api/document

{"data":{"groups":[{"questions":[{"answers":["Dung d\u1ecbch HCl\t ","Dung d\u1ecbch NaOH","N\u01b0\u1edbc\t ","D\u1ea7u h\u1ecfa"],"correct_answer":3,"has_numbering":false,"summary":"Mu\u1ed1n b\u1ea3o qu\u1ea3n kim lo\u1ea1i ki\u1ec1m, ng\u01b0\u1eddi ta ng\u00e2m k\u00edn ch\u00fang trong :"},{"answers":["Li","N","K","Rb"],"correct_answer":2,"has_numbering":false,"summary":"L\u1ea5y 19 gam hh 2 mu\u1ed1i M2CO3 v\u00e0 MHCO3 cho t\u00e1c d\u1ee5ng v\u1edbi dd HCl d\u01b0. Ng\u01b0\u1eddi ta thu \u0111\u01b0\u1ee3c 4,48 l\u00edt kh\u00ed \u1edf \u0111ktc M l\u00e0:"},{"answers":["1.","2.\t ","4.","5."],"correct_answer":1,"has_numbering":false,"summary":"Cho c\u00e1c ch\u1ea5t ri\u00eang bi\u1ec7t sau \u0111\u00e2y : Ca(OH)2 ; Na2CO3 ; HCl ; NaOH , Ba(OH)2 , Na3PO4 . S\u1ed1 ch\u1ea5t c\u00f3 th\u1ec3 l\u00e0m m\u1ec1m n\u01b0\u1edbc c\u1ee9ng v\u0129nh c\u1eedu l\u00e0 ?"},{"answers":["D\u1ec5 nh\u1eadn electron th\u1ec3 hi\u1ec7n t\u00ednh oxi ho\u00e1","D\u1ec5 nh\u01b0\u1eddng eletron th\u1ec3 hi\u1ec7n t\u00ednh oxi ho\u00e1","D\u1ec5 nh\u1eadn electron th\u1ec3 hi\u1ec7n t\u00ednh kh\u1eed","D\u1ec5 nh\u01b0\u1eddng electron th\u1ec3 hi\u1ec7n t\u00ednh kh\u1eed"],"correct_answer":3,"has_numbering":false,"summary":"T\u00ednh ch\u1ea5t c\u1ee7a kim lo\u1ea1i ki\u1ec1m v\u00e0 ki\u1ec1m th\u1ed5 l\u00e0:"},{"answers":["CO32- + H+ \uf0ae HCO\u20133","CO32- + 2H+ \uf0ae H2CO3","2Na+ + SO42- \uf0ae Na2SO4","CO32- + 2H+ \uf0ae H2O + CO2"],"correct_answer":3,"has_numbering":false,"summary":"Ph\u1ea3n \u1ee9ng gi\u1eefa Na2CO3 v\u00e0 H2SO4 theo t\u1ec9 l\u1ec7 1:1 v\u1ec1 s\u1ed1 mol c\u00f3 ph\u01b0\u01a1ng tr\u00ecnh ion r\u00fat g\u1ecdn l\u00e0:"},{"answers":["K","Na\t ","Cs","Li"],"correct_answer":3,"has_numbering":false,"summary":"Kim lo\u1ea1i n\u00e0o sau \u0111\u00e2y c\u00f3 t\u00ednh kh\u1eed y\u1ebfu nh\u1ea5t?"},{"answers":["40% v\u00e0 60%","62,9% v\u00e0 37,1%","69,2% v\u00e0 30,8%","60,2% v\u00e0 32,8%"],"correct_answer":2,"has_numbering":false,"summary":"H\u00f2a tan ho\u00e0n to\u00e0n h\u1ee3p kim Al-Mg trong dung d\u1ecbch HCl d\u01b0 thu \u0111\u01b0\u1ee3c 8,96 lit kh\u00ed (\u0111ktc). N\u1ebfu cho c\u00f9ng l\u01b0\u1ee3ng h\u1ee3p kim tr\u00ean t\u00e1c d\u1ee5ng v\u1edbi dung d\u1ecbch NaOH th\u00ec thu \u0111\u01b0\u1ee3c 6,72 l\u00edt kh\u00ed(\u0111ktc). Th\u00e0nh ph\u1ea7n % v\u1ec1 kh\u1ed1i l\u01b0\u1ee3ng c\u1ee7a Al v\u00e0 Mg trong h\u1ee3p kim l\u00e0:"},{"answers":["Ca(OH)2 , Na2CO3","CaCl2 , H2SO4","NaCl , HCl\t ","Na2SO4, HCl"],"correct_answer":0,"has_numbering":false,"summary":"Nh\u1eefng ch\u1ea5t c\u00f3 th\u1ec3 l\u00e0m m\u1ec1m n\u01b0\u1edbc c\u00f3 t\u00ednh c\u1ee9ng t\u1ea1m th\u1eddi l\u00e0::"},{"answers":["7,8g","19,5","23,4","11,7 g"],"correct_answer":1,"has_numbering":false,"summary":"Cho 100 gam dd NaOH 36% v\u00e0o 250 ml dd AlCl3 1M . Kh\u1ed1i l\u01b0\u1ee3ng k\u1ebft t\u1ee7a thu \u0111\u01b0\u1ee3c:"},{"answers":["CaSO4.2H2O.","CaSO4.H2O ho\u1eb7c CaSO4.0,5.H2O.","CaSO4.","Ca(H2PO4)2. CaSO4.2H2O."],"correct_answer":0,"has_numbering":false,"summary":"Th\u00e0nh ph\u1ea7n ho\u00e1 h\u1ecdc c\u1ee7a th\u1ea1ch cao s\u1ed1ng l\u00e0:"},{"answers":["32","58","64","46"],"correct_answer":1,"has_numbering":false,"summary":"T\u1ed5ng h\u1ec7 s\u1ed1 c\u1ee7a ph\u1ea3n \u1ee9ng: Al + HNO3 \uf0e0 Al(NO3)3 + NH4NO3+ H2O l\u00e0:"},{"answers":["Kh\u1eed","Oxi ho\u00e1","L\u01b0\u1ee1ng t\u00ednh","Axit"],"correct_answer":2,"has_numbering":false,"summary":"T\u00ednh ch\u1ea5t ho\u00e1 h\u1ecdc c\u01a1 b\u1ea3n c\u1ee7a nh\u00f4m oxit l\u00e0 g\u00ec?"},{"answers":["BaCl2; MgSO4; Na2CO3; Pb(NO3)2","BaCO3; MgSO4, NaCl; Pb(NO3)2","BaCl2 ; PbSO4; MgCl2 ; Na2CO3","Mg(NO3)2; BaCl2; Na2CO3; PbSO4"],"correct_answer":1,"has_numbering":false,"summary":"C\u00f3 4 dung d\u1ecbch trong su\u1ed1t m\u1ed7i dung d\u1ecbch ch\u1ec9 ch\u1ee9a m\u1ed9t lo\u1ea1i cation v\u00e0 1 lo\u1ea1i anion. C\u00e1c ion trong c\u1ea3 4 dung d\u1ecbch g\u1ed3m Ba2+; Mg2+; Pb2+; Na+; <img src=\"https://static.youngmix.vn/c7aee568-d829-4167-be0f-816dc645a1bc/rId3.png\" width=\"108.6\" height=\"18.9\"/>. 4 dung d\u1ecbch \u0111\u00f3 l\u00e0:"},{"answers":["L\u00e0m hao t\u1ed5n ch\u1ea5t gi\u1eb7t r\u1eeda t\u1ed5ng h\u1ee3p\t ","l\u00e0m gi\u1ea3m m\u00f9i v\u1ecb th\u1ef1c ph\u1ea9m","L\u00e0m gi\u1ea3m \u0111\u1ed9 an to\u00e0n c\u1ee7a c\u00e1c n\u1ed3i h\u01a1i","L\u00e0m t\u1eafc \u1ed1ng d\u1eabn n\u01b0\u1edbc n\u00f3ng"],"correct_answer":0,"has_numbering":false,"summary":"N\u01b0\u1edbc c\u1ee9ng kh\u00f4ng g\u00e2y ra t\u00e1c h\u1ea1i n\u00e0o d\u01b0\u1edbi \u0111\u00e2y?"},{"answers":["Kh\u1eed MgO b\u1eb1ng H2 ho\u1eb7c CO.","\u0110i\u1ec7n ph\u00e2n dung d\u1ecbch MgCl2.","\u0110i\u1ec7n ph\u00e2n n\u00f3ng ch\u1ea3y MgCl2 khan.","D\u00f9ng kim lo\u1ea1i Al cho t\u00e1c d\u1ee5ng v\u1edbi dung d\u1ecbch MgCl2"],"correct_answer":2,"has_numbering":false,"summary":"Ng\u01b0\u1eddi ta c\u00f3 th\u1ec3 \u0111i\u1ec1u ch\u1ebf kim lo\u1ea1i Mg b\u1eb1ng c\u00e1ch."},{"answers":["0,75 M","1M","0,25 M","0,5 M"],"correct_answer":3,"has_numbering":false,"summary":"Khi cho 100ml dung d\u1ecbch KOH 1M v\u00e0o 100ml dung d\u1ecbch HCl thu \u0111\u01b0\u1ee3c dung d\u1ecbch c\u00f3 ch\u1ee9a 6,525 gam ch\u1ea5t tan. N\u1ed3ng \u0111\u1ed9 mol c\u1ee7a HCl trong dung d\u1ecbch \u0111\u00e3 d\u00f9ng l\u00e0:"},{"answers":["Nh\u00f4m l\u00e0 ch\u1ea5t kh\u1eed m\u1ea1nh.","N\u01b0\u1edbc l\u00e0 h\u1ee3p ch\u1ea5t trung t\u00ednh.","Tr\u00ean b\u1ec1 m\u1eb7t c\u1ee7a nh\u00f4m \u0111\u01b0\u1ee3c ph\u1ee7 1 l\u1edbp Al2O3","Nh\u00f4m l\u00e0 nguy\u00ean t\u1ed1 l\u01b0\u1ee1ng t\u00ednh."],"correct_answer":2,"has_numbering":false,"summary":"V\u1eadt b\u1eb1ng nh\u00f4m ko t\u00e1c d\u1ee5ng v\u1edbi n\u01b0\u1edbc l\u00e0 v\u00ec:"},{"answers":["Na2CO3","NaOH","H2SO4","KHSO4"],"correct_answer":0,"has_numbering":false,"summary":"Al(OH)3 kh\u00f4ng tan trong dung d\u1ecbch n\u00e0o sau \u0111\u00e2y?"},{"answers":["Dung d\u1ecbch v\u1eabn trong su\u1ed1t.","C\u00f3 k\u1ebft t\u1ee7a Al(OH)3.","C\u00f3 k\u1ebft t\u1ee7a Al(OH)3 sau \u0111\u00f3 k\u1ebft t\u1ee7a l\u1ea1i tan.","C\u00f3 k\u1ebft t\u1ee7a nh\u00f4m cacbonat."],"correct_answer":1,"has_numbering":false,"summary":"S\u1ee5c kh\u00ed CO2 v\u00e0o dung d\u1ecbch NaAlO2 hi\u1ec7n t\u01b0\u1ee3ng x\u1ea3y ra l\u00e0:"},{"answers":["N\u01b0\u1edbc c\u1ee9ng to\u00e0n ph\u1ea7n","N\u01b0\u1edbc m\u1ec1m","N\u01b0\u1edbc c\u1ee9ng v\u0129nh c\u1eedu","N\u01b0\u1edbc c\u1ee9ng t\u1ea1m th\u1eddi"],"correct_answer":0,"has_numbering":false,"summary":"M\u1ed9t lo\u1ea1i n\u01b0\u1edbc c\u00f3 ch\u1ee9a 0,01 mol Na+; 0,02 mol Ca2+; 0,01mol Mg2+;0,05 mol HCO3-; 0,02 mol Cl-. N\u01b0\u1edbc trong c\u1ed1c thu\u1ed9c lo\u1ea1i n\u00e0o?"}],"summary":""}],"id":"c7aee568-d829-4167-be0f-816dc645a1bc","summary":{"file_name":"/home/vnteachmix/domains/vnteachmix.com/public_html/file-de-thi/H\u00f3a 12 giua ki 2 - Copy.doc","no_answer":0,"questions":20,"wrong_number_answers":0}},"error":false}